source: rtems/cpukit/include/rtems/posix/pthreadattrimpl.h @ 2afb22b

5
Last change on this file since 2afb22b was 2afb22b, checked in by Chris Johns <chrisj@…>, on 12/23/17 at 07:18:56

Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

  • The make preinstall step itself needs time and disk space.
  • Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error.
  • There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult.
  • The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit.
  • An introduction of a new build system is difficult.
  • Include paths specified by the -B option are system headers. This may suppress warnings.
  • The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

  • cpukit/include
  • cpukit/score/cpu/@RTEMS_CPU@/include
  • cpukit/libnetworking

The new BSP include directories are:

  • bsps/include
  • bsps/@RTEMS_CPU@/include
  • bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.
  • Property mode set to 100644
File size: 2.1 KB
Line 
1/**
2 * @file
3 *
4 * @brief POSIX Threads Private Support
5 *
6 * This include file contains all the private support information for
7 * POSIX threads.
8 */
9
10/*
11 *  COPYRIGHT (c) 1989-2011.
12 *  On-Line Applications Research Corporation (OAR).
13 *
14 *  The license and distribution terms for this file may be
15 *  found in the file LICENSE in this distribution or at
16 *  http://www.rtems.org/license/LICENSE.
17 */
18
19#ifndef _RTEMS_POSIX_PTHREADATTRIMPL_H
20#define _RTEMS_POSIX_PTHREADATTRIMPL_H
21
22#include <errno.h>
23#include <pthread.h>
24
25#include <rtems/score/basedefs.h>
26#include <rtems/score/assert.h>
27#include <rtems/posix/priorityimpl.h>
28#if defined(RTEMS_POSIX_API)
29#include <rtems/posix/threadsup.h>
30#endif
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
36/**
37 * @addtogroup POSIX_PTHREAD
38 */
39/**@{**/
40
41/**
42 * This variable contains the default POSIX Thread attributes.
43 */
44extern const pthread_attr_t _POSIX_Threads_Default_attributes;
45
46RTEMS_INLINE_ROUTINE void _POSIX_Threads_Copy_attributes(
47  pthread_attr_t        *dst_attr,
48  const pthread_attr_t  *src_attr
49)
50{
51  *dst_attr = *src_attr;
52  _Assert(
53    dst_attr->affinitysetsize == sizeof(dst_attr->affinitysetpreallocated)
54  );
55  dst_attr->affinityset = &dst_attr->affinitysetpreallocated;
56}
57
58RTEMS_INLINE_ROUTINE void _POSIX_Threads_Initialize_attributes(
59  pthread_attr_t  *attr
60)
61{
62  _POSIX_Threads_Copy_attributes(
63    attr,
64    &_POSIX_Threads_Default_attributes
65  );
66}
67
68#if defined(RTEMS_POSIX_API)
69RTEMS_INLINE_ROUTINE void _POSIX_Threads_Get_sched_param_sporadic(
70  const Thread_Control    *the_thread,
71  const Scheduler_Control *scheduler,
72  struct sched_param      *param
73)
74{
75  const POSIX_API_Control *api;
76
77  api = the_thread->API_Extensions[ THREAD_API_POSIX ];
78  param->sched_ss_low_priority = _POSIX_Priority_From_core(
79    scheduler,
80    api->Sporadic.Low_priority.priority
81  );
82  param->sched_ss_repl_period = api->Sporadic.sched_ss_repl_period;
83  param->sched_ss_init_budget = api->Sporadic.sched_ss_init_budget;
84  param->sched_ss_max_repl = api->Sporadic.sched_ss_max_repl;
85}
86#endif
87
88/** @} */
89
90#ifdef __cplusplus
91}
92#endif
93
94#endif
95/*  end of include file */
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